Philadelphia Mayor Jim Kenney wondered if there was any hope for movement on gun control following the mass shooting in Las Vegas that left dozens of people dead and hundreds more injured.

Speaking Monday, Kenney said he was struggling for answers.

"I'm at a loss for words on how we can prevent this, other than keeping these kinds of weapons out of crazy people's hands," Kenney said.

Kenney referenced the 2012 shooting at an elementary school in Connecticut that dozens of people, including children, dead.

"After Sandy Hook I swore something was going to get done. When something didn't happen after Sandy Hook, I don't know if it's ever going to happen," Kenney said. "I guess this is just the new normal now."

Philadelphia police say they'll try to learn lessons from this incident, as they continue their mission to protect that city. That includes planning for large scale events such as the Made in America, Welcome America, various parades, and this year's NFL Draft.

"We are also compelled to do things we can't talk about, where we are putting people in places you don't see, or we are monitoring situations you wouldn't think we would monitor," said Commissioner Richard Ross.